Figure 2. A simple sine wave with a period of 360° and an amplitude of 1. In single phase power the x-intercepts are 180° from each other. A full period is 360°. A single phase motor has a crest approximately every 16.5 milliseconds giving the motors a tendency to vibrate more, which may contribute to a shortened bearing life.
Impeller wear ring
Model 411 Horizontal Split Case
Bowl wear ring
Vertical Lathe
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
Machinist at Nickerson Company running a state-of-the-art CNC machine.
Well Pump Installation
Computer Numerical Control Machine (CNC) at Nickerson
Horizontal Lathe
Custom fabrication to a large part
“NSF/ANSI 61.” NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Computer Numerical Control Machine (CNC) at Nickerson
Custom shapes cut from raw materials.
Nickerson Field Crew
Model 342A Single Stage End Suction
Utah Lake Cascade Pump
Submersible Turbine Pumps
Figure 3. Three phase power has three identical sine waves overlapping at an offset of 2π/3 radians or 120°. When one phase reaches an x-intercept or node the next phase is only 30° and approximately 5.6 milliseconds from reaching its crest.
Bowl wear ring
Vertical Turbine Pumps, Deep Well
Super T Series® Engine Driven
Utah Lake Cascade Pump
Vertical Lathe
SF Series®
80 Series® Engine Driven
Schlumberger Pump Assembly
380 Series Vertical Inline Pump with VFD
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
Close-Coupled Vertical Turbine
Horizontal Lathe
Gorman-Rupp SF Series® Submersible Solids-handling Pump
National Pump Vertical Turbine Pumps, API 610
Figure 1. The general arrangement of a three phase waveform.
